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#ifndef __MAC_H__
#define __MAC_H__
#include <unistd.h>
/* Device MAC address.
*
* 32 bits might seem a little short for a device MAC, but at 20 bus nodes the probablility of a collision is about 1 in
* 10 million. Check for yourself using the python code below.
*
* #!/usr/bin/env python3
* from operator import mul
* from functools import reduce
* m = 32
* n = 20
* print(reduce(mul, [2**m-i for i in range(n)]) / ((2**m)**n))
* # -> 0.9999999557621786
*/
extern uint32_t device_mac;
#endif /* __MAC_H__ */
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